9. Gas 135
The external socket for gas is only suitable for extracting
gas, not for supplying gas to the system.
The coupling valve has been constructed in such a way that the
emergency shuto valve can only be opened if a gas hose has
been attached. When hitching, the plug connection is plugged
into the safety coupling.
If no gas hose has been hitched, always use the protective cap
to shut the opening of the valve.